Embedded Programming with Android - Roger Ye

Embedded Programming with Android

Bringing Up an Android System from Scratch

(Autor)

Buch | Softcover
400 Seiten
2015
Addison-Wesley Educational Publishers Inc (Verlag)
978-0-13-403000-5 (ISBN)
37,35 inkl. MwSt
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The First Practical, Hands-On Guide to Embedded System Programming for Android  

Today, embedded systems programming is a more valuable discipline than ever, driven by fast-growing, new fields such as wearable technology and the Internet of Things. In this concise guide, Roger Ye teaches all the skills you’ll need to write the efficient embedded code necessary to make tomorrow’s Android devices work.

 

The first title in Addison-Wesley’s new Android™ Deep Dive series for intermediate and expert Android developers, Embedded Programming with Android™ draws on Roger Ye’s extensive experience with advanced projects in telecommunications and mobile devices. Step by step, he guides you through building a system with all the key components Android hardware developers must deliver to manufacturing. By the time you’re done, you’ll have the key programming, compiler, and debugging skills you’ll need for real-world projects.

 

First, Ye introduces the essentials of bare-metal programming: creating assembly language code that runs directly on hardware. Then, building on this knowledge, he shows how to use C to create hardware interfaces for booting a Linux kernel with the popular U-Boot bootloader. Finally, he walks you through using filesystem images to boot Android and learning to build customized ROMs to support any new Android device. Throughout, Ye provides extensive downloadable code you can run, explore, and adapt.

 

You will



 Build a complete virtualized environment for embedded development
Understand the workflow of a modern embedded systems project
Develop assembly programs, create binary images, and load and run them in the Android emulator
Learn what it takes to bring up a bootloader and operating system
Move from assembler to C, and explore Android’s goldfish hardware interfaces
Program serial ports, interrupt controllers, real time clocks, and NAND flash controllers
Integrate C runtime libraries
Support exception handling and timing
Use U-Boot to boot the kernel via NOR or NAND flash processes
Gain in-depth knowledge for porting U-Boot to new environments
Integrate U-Boot and a Linux kernel into an AOSP and CyanogenMod source tree
Create your own Android ROM on a virtual Android device

 

Roger Ye is a long-time embedded system programmer who currently leads a team of Android app developers at Intel Security. He has served as engineering manager for Intel, Motorola, and Emerson. At Motorola and Emerson he was extensively involved in embedded systems projects for mobile devices and telecom infrastructures.

Preface    xv

Acknowledgments xxi

About the Author xxiii



 



Part I: Bare Metal Programming   1

Chapter 1: Introduction to Embedded System Programming   3



What Is an Embedded System?   3

Bare Metal Programming   3

Learning Embedded System Programming   5

Software Layers in an Embedded System   7

Tools and Hardware Platform   11

The Difference between Virtual Hardware and Real Hardware   11

Summary   12

 

Chapter 2: Inside Android Emulator   13

Overview of the Virtual Hardware   13

Configuring Android Virtual Devices   14

Hardware Interfaces   17

Serial   18

Timer   18

Summary   24

 

Chapter 3: Setting Up the Development Environment 25

The Host and Client Environments   25

Development Environment Setup   26

Downloading and Installing Android SDK   27

Downloading and Installing the GNU Toolchain for ARM   27

Integrated Development Environment   29

Your First ARM Program   29

Building the Binary   30

Running in the Android Emulator   32

makefile for the Example Projects   36

Summary   38

 

Chapter 4: Linker Script and Memory Map    39

Memory Map   39

Linker   41

Linker Script   51

Linker Script Example 53

Initializing Data in RAM   56

Summary   61

 

Chapter 5: Using the C Language   63

C Startup in a Bare Metal Environment   63

Calling Convention   78

Goldfish Serial Port Support   81

Summary   92

 

Chapter 6: Using the C Library   93

C Library Variants   93

Newlib C Library   96

Common Startup Code Sequence   97

CS3 Linker Scripts   97

Customized CS3 Startup Code for the Goldfish Platform   103

System Call Implementations   104

Running and Debugging the Library   112

Using Newlib with QEMU ARM Semihosting   116

Summary   122

 

Chapter 7: Exception Handling and Timer  125

Goldfish Interrupt Controller   125

The Simplest Interrupt Handler   128

Nested Interrupt Handler   140

Testing System Calls/Software Interrupts   163

Timer   164

Real-Time Clock   172

Summary   181

 

Chapter 8: NAND Flash Support in Goldfish 183

Android File System   183

NAND Flash Properties   185

NAND Flash Programming Interface in the Goldfish Platform   187

Memory Technology Device Support   188

MTD API   189

NAND Flash Programming Interface Test Program   206

Summary   216

 



Part II: U-Boot   217

Chapter 9: U-Boot Porting   219



Introducing U-Boot   219

Downloading and Compiling U-Boot   220

Debugging U-Boot with GDB   224

Porting U-Boot to the Goldfish Platform   227

Summary   246

 

Chapter 10: Using U-Boot to Boot the Goldfish Kernel 249

Building the Goldfish Kernel   249

Prebuilt Toolchain and Kernel Source Code   250

Running and Debugging the Kernel in the Emulator   252

Booting Android from NOR Flash   254

Booting Android from NAND Flash   270

Summary   280

 



Part III: Android System Integration   281

Chapter 11: Building Your Own AOSP and CyanogenMod 283



Introducing AOSP and CyanogenMod   283

Setting Up an Android Virtual Device   284

AOSP Android Emulator Build   288

CyanogenMod Android Emulator Build   297

Summary   307

 

Chapter 12: Customizing Android and Creating Your Own Android ROM 309

Supporting New Hardware in AOSP   309

Supporting New Hardware in CyanogenMod   332

Summary   338

 



Part IV: Appendixes  339

Appendix A: Building the Source Code for This Book   341



Setting Up the Build Environment   341

Setting Up a Virtual Machine   344

Organization of Source Code   344

Source Code for Part I   345

Source Code for Part II   350

Source Code for Part III   352

 

Appendix B: Using Repo in This Book 355

Resources for Repo   355

Syncing a New Source Tree In Minutes   355

Downloading Git Repositories Using Local Manifest   356

 

Index    359

 

Erscheint lt. Verlag 27.8.2015
Verlagsort New Jersey
Sprache englisch
Maße 179 x 228 mm
Gewicht 626 g
Themenwelt Informatik Software Entwicklung Mobile- / App-Entwicklung
Informatik Weitere Themen Hardware
Informatik Weitere Themen Smartphones / Tablets
ISBN-10 0-13-403000-1 / 0134030001
ISBN-13 978-0-13-403000-5 / 9780134030005
Zustand Neuware
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